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Finding the Fourth Proportional to 8,914.58, 12,303.03 and 5,137.88

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Solution

The fourth proportional to 8,914.58, 12,303.03 and 5,137.88 is: 7,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.58 : 12,303.03 = 5,137.88 : x
  2. Step 2: Convert to fraction form
    8,914.58/12,303.03 = 5,137.88/x
  3. Step 3: Cross multiply
    8,914.58x = 12,303.03 × 5,137.88
  4. Step 4: Simplify right side
    8,914.58x = 63,211,491.78
  5. Step 5: Solve for x
    x = 63,211,491.78/8,914.58
  6. Step 6: Final answer
    x = 7,090.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.